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ERROR CODE-REASON AND SOLUTION
All information will be showed as code or "Error', the following are all codes and
corresponding solutions.
Code
Cause
204
Calculation error
220
Battery low
255
Received signal is too
weak
256
Received signal is too
strong
261
Out of measuring range
500
Read error
WARNING To reduce the risk of injury, user must read instruction manual "
"
Corrective measure
Switch on/off the device several times and
measure again.
Charge the device
Improve the reflective surface. (Use target
plate or white paper)
Improve the reflective surface. (Use target
plate or white paper)
Measure within the appropriate range.
Switch on/off the device several times and
measure again.
8
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